/* COBAM BTP — feuille de style principale */
:root{
  --beton:#E9E6E0;--beton-2:#DEDAD2;--paper:#F6F4F0;--line:#CCC7BC;
  --ink:#16161A;--ink-2:#212126;--ink-3:#2C2C32;--line-d:#36363D;
  --muted:#4F4C46;--muted-d:#BEBAB1;--cream:#F3F0EA;
  --gold:#E3A72F;--gold-2:#F0BA4A;--gold-deep:#865700;
  --out:cubic-bezier(.23,1,.32,1);--inout:cubic-bezier(.77,0,.175,1);
  --display:'Archivo','Arial Narrow',Arial,sans-serif;
  --body:'Instrument Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --mono:'Geist Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --head:76px;--gutter:24px;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--head) + 16px)}
body{font-family:var(--body);font-size:17px;line-height:1.6;color:var(--ink);background:var(--beton);-webkit-font-smoothing:antialiased;overflow-x:hidden;text-rendering:optimizeLegibility}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--gold-deep);outline-offset:3px}
.dark :focus-visible,.band-dark :focus-visible,footer :focus-visible{outline-color:var(--gold)}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--ink);color:var(--cream);padding:12px 18px;border-radius:3px;font-weight:600;transition:top .2s var(--out)}
.skip:focus{top:12px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 var(--gutter)}
.display{font-family:var(--display);font-stretch:110%;font-weight:800;letter-spacing:-.022em;line-height:1.02}
.gold{color:var(--gold-deep)}
.dark .gold,.band-dark .gold,footer .gold{color:var(--gold)}
.label{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:.74rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--gold-deep)}
.label::before{content:"";width:22px;height:2px;background:var(--gold);flex:none}
.dark .label,.band-dark .label{color:var(--gold)}
.muted{color:var(--muted)}

/* Sections */
section{padding:112px 0}
.s-paper{background:var(--paper)}
.s-beton{background:var(--beton)}
.s-beton2{background:var(--beton-2)}
.dark{background:var(--ink);color:var(--cream)}
.dark .muted{color:var(--muted-d)}
.head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px 56px;margin-bottom:56px}
.head h2{font-size:clamp(2rem,4.3vw,3.4rem);max-width:780px;margin-top:16px;text-wrap:balance}
.head p{max-width:420px;color:var(--muted)}
.dark .head p{color:var(--muted-d)}

/* Boutons et liens */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 26px;font-weight:600;border-radius:3px;white-space:nowrap;transition:transform .16s var(--out),background-color .2s ease,border-color .2s ease,color .2s ease}
.btn:active{transform:scale(.97)}
.btn svg{width:18px;height:18px;flex:none;transition:transform .25s var(--out)}
.btn-ink{background:var(--ink);color:var(--cream)}
.btn-gold{background:var(--gold);color:var(--ink)}
.btn-line{border:1px solid var(--ink);color:var(--ink)}
.btn-line-d{border:1px solid #5C5A53;color:var(--cream)}
.tlink{display:inline-flex;align-items:center;gap:10px;min-height:44px;font-weight:600;color:var(--gold-deep);background-image:linear-gradient(currentColor,currentColor);background-size:0 1px;background-position:0 calc(100% - 10px);background-repeat:no-repeat;transition:background-size .3s var(--out)}
.dark .tlink,.band-dark .tlink{color:var(--gold)}
.tlink svg{width:18px;height:18px;transition:transform .25s var(--out)}
@media (hover:hover) and (pointer:fine){
  .btn-ink:hover{background:var(--ink-3)}
  .btn-gold:hover{background:var(--gold-2)}
  .btn-line:hover{background:var(--ink);color:var(--cream)}
  .btn-line-d:hover{border-color:var(--gold);color:var(--gold)}
  .btn:hover svg,.tlink:hover svg{transform:translateX(4px)}
  .tlink:hover{background-size:calc(100% - 28px) 1px}
}

/* En-tête */
.site-head{position:sticky;top:0;z-index:50;background:var(--beton);border-bottom:1px solid transparent;transition:border-color .2s ease,background-color .2s ease}
.site-head.scrolled{border-bottom-color:var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--head)}
.brand{display:flex;align-items:center;gap:12px;min-height:44px}
.brand svg{width:46px;height:38px}
.brand b{font-family:var(--display);font-stretch:116%;font-weight:800;font-size:1.22rem;letter-spacing:.06em}
.brand b span{color:var(--gold-deep)}
footer .brand b span{color:var(--gold)}
.menu{display:flex;align-items:center;gap:32px;font-size:.95rem;font-weight:500}
.menu a:not(.btn){position:relative;padding:12px 0;transition:color .2s ease}
.menu a:not(.btn)::after{content:"";position:absolute;left:0;right:0;bottom:7px;height:2px;background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--out)}
.menu a[aria-current="page"]::after{transform:scaleX(1)}
.menu .btn{min-height:46px;padding:0 20px}
@media (hover:hover) and (pointer:fine){.menu a:not(.btn):hover::after{transform:scaleX(1)}}
.burger{display:none;width:48px;height:48px;align-items:center;justify-content:center}
.burger span{display:block;width:24px;height:2px;background:var(--ink);position:relative;transition:background-color .15s ease}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:24px;height:2px;background:var(--ink);transition:transform .28s var(--out)}
.burger span::before{transform:translateY(-8px)}
.burger span::after{transform:translateY(8px)}
.menu-open .burger span{background:transparent}
.menu-open .burger span::before{transform:rotate(45deg)}
.menu-open .burger span::after{transform:rotate(-45deg)}

/* Transition entre pages */
.curtain{position:fixed;inset:0;z-index:90;background:var(--ink);transform:translateY(101%);pointer-events:none;display:flex;align-items:center;justify-content:center;visibility:hidden}
.curtain svg{width:110px;height:90px}
.curtain::after{content:"";position:absolute;left:0;right:0;top:0;height:6px;background:var(--gold)}
html.pt .curtain{transform:none;visibility:visible}

/* Entrée du héros (une seule fois au chargement) */
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@keyframes lift{from{transform:translateY(105%)}to{transform:none}}
@keyframes wipe{from{clip-path:inset(100% 0 0 0)}to{clip-path:inset(0)}}
@keyframes grow{from{transform:scaleY(0)}to{transform:none}}
.enter{animation:rise .8s var(--out) both}
.e1{animation-delay:.08s}.e2{animation-delay:.16s}.e3{animation-delay:.24s}.e4{animation-delay:.32s}
.ln{display:block;overflow:hidden;padding-bottom:.08em;margin-bottom:-.08em}
.ln>span{display:block;animation:lift 1s var(--out) both}
.ln:nth-child(2)>span{animation-delay:.08s}.ln:nth-child(3)>span{animation-delay:.16s}

/* Accueil — héros */
.hero{padding:56px 0 0;min-height:calc(100svh - var(--head));display:flex;flex-direction:column;background:var(--beton)}
.hero-grid{flex:1;display:grid;grid-template-columns:1.25fr .75fr;gap:64px;align-items:center;padding-bottom:56px}
.hero h1{font-size:clamp(2.6rem,5.4vw,4.7rem);margin:22px 0 26px}
.hero .lead{font-size:1.16rem;color:var(--muted);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.proof{display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line);font-size:.9rem;color:var(--muted);max-width:560px}
.proof span{display:inline-flex;align-items:center;gap:8px}
.proof svg{width:18px;height:18px;stroke:var(--gold-deep);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.sign{position:relative;padding:0 0 26px 26px}
.sign::before{content:"";position:absolute;left:0;bottom:0;width:62%;height:58%;background:var(--gold);transform-origin:bottom;animation:grow .9s var(--inout) .3s both}
.sign .frame{position:relative;overflow:hidden;animation:wipe 1.1s var(--inout) .1s both}
.sign img{width:100%;height:auto;aspect-ratio:1/1;object-fit:cover}
.coords{display:flex;justify-content:space-between;gap:12px;margin-top:14px;font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;color:var(--muted);padding-left:26px}

/* Bande de marque (moment typographique) */
.band-dark{background:var(--ink);color:var(--cream)}
.statement{font-family:var(--display);font-stretch:110%;font-weight:800;font-size:clamp(2.4rem,7vw,6.2rem);line-height:1;letter-spacing:-.025em;margin-top:22px;max-width:1100px}
.statement .w{color:#4A4A50;transition:color .45s ease}
.statement .w.on{color:var(--cream)}
.statement .w.on.g{color:var(--gold)}
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-d);border:1px solid var(--line-d);margin-top:72px}
.trio div{background:var(--ink);padding:30px 28px}
.trio svg{width:34px;height:34px;stroke:var(--gold);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;margin-bottom:16px}
.trio h3{font-family:var(--display);font-weight:700;font-size:1.16rem;margin-bottom:6px}
.trio p{color:var(--muted-d);font-size:.96rem}

/* Cartes pôles */
.poles{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pole{display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);transition:transform .3s var(--out),border-color .2s ease}
.pole .art{display:block;aspect-ratio:4/3;overflow:hidden;background:var(--ink)}
.pole .art svg{width:100%;height:100%;transition:transform .6s var(--out)}
.pole .txt{padding:26px 26px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.pole .n{font-family:var(--mono);font-size:.74rem;color:var(--gold-deep);letter-spacing:.06em}
.pole h3{font-family:var(--display);font-stretch:108%;font-weight:800;font-size:1.5rem;line-height:1.12}
.pole p{color:var(--muted);font-size:.97rem}
.pole .tlink{margin-top:auto}
@media (hover:hover) and (pointer:fine){.pole:hover{transform:translateY(-2px);border-color:var(--ink)}.pole:hover .art svg{transform:scale(1.03)}.pole:hover .tlink svg{transform:translateX(4px)}}

/* Méthode */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;counter-reset:s;list-style:none}
.step{position:relative;padding-top:32px;border-top:2px solid var(--line)}
.step::before{counter-increment:s;content:"0" counter(s);position:absolute;top:-19px;left:0;width:36px;height:36px;border-radius:50%;background:var(--ink);color:var(--gold);font-family:var(--mono);font-weight:500;font-size:.8rem;display:flex;align-items:center;justify-content:center}
.step:first-child{border-top-color:var(--gold)}
.step h3{font-family:var(--display);font-stretch:108%;font-weight:700;font-size:1.25rem;margin-bottom:8px}
.step p{color:var(--muted);font-size:.98rem}
.dark .step{border-top-color:var(--line-d)}
.dark .step:first-child{border-top-color:var(--gold)}
.dark .step::before{background:var(--gold);color:var(--ink)}
.dark .step p{color:var(--muted-d)}

/* Cartes ouvrage */
.ouv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.ouv{position:relative;display:flex;flex-direction:column;text-align:left;background:var(--ink-2);border:1px solid var(--line-d);color:var(--cream);transition:transform .3s var(--out),border-color .2s ease}
.ouv[hidden]{display:none}
.ouv .art{aspect-ratio:4/3;overflow:hidden;position:relative}
.ouv .art svg{width:100%;height:100%;transition:transform .6s var(--out)}
.ouv .cat{position:absolute;left:14px;top:14px;background:var(--gold);color:var(--ink);font-family:var(--mono);font-size:.68rem;font-weight:500;letter-spacing:.06em;text-transform:uppercase;padding:5px 9px}
.ouv .info{padding:20px 22px 22px;display:flex;flex-direction:column;gap:6px;flex:1}
.ouv h3{font-family:var(--display);font-stretch:108%;font-weight:700;font-size:1.16rem;line-height:1.22}
.ouv .meta{font-size:.9rem;color:var(--muted-d)}
.ouv .more::after{content:"";position:absolute;inset:0}
.ouv .more{text-align:left;margin-top:auto;padding-top:12px;font-size:.88rem;font-weight:600;color:var(--gold);display:inline-flex;align-items:center;gap:8px}
.ouv .more svg{width:16px;height:16px;transition:transform .25s var(--out)}
@media (hover:hover) and (pointer:fine){.ouv:hover{transform:translateY(-2px);border-color:var(--gold)}.ouv:hover .art svg{transform:scale(1.03)}.ouv:hover .more svg{transform:translateX(4px)}}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{min-height:44px;padding:0 18px;border:1px solid var(--line-d);border-radius:999px;font-size:.9rem;font-weight:600;color:var(--muted-d);white-space:nowrap;transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .16s var(--out)}
.chip:active{transform:scale(.97)}
.chip[aria-pressed="true"]{background:var(--gold);border-color:var(--gold);color:var(--ink)}
@media (hover:hover) and (pointer:fine){.chip[aria-pressed="false"]:hover{border-color:var(--gold);color:var(--cream)}}
.chips-top{margin-bottom:36px}
.note{margin-top:40px;padding:18px 22px;border-left:3px solid var(--gold);background:var(--ink-2);color:var(--muted-d);font-size:.95rem;max-width:780px}

/* Bandeau d'appel */
.cta{background:var(--gold);color:var(--ink);padding:88px 0}
.cta .wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:end}
.cta h2{font-size:clamp(2rem,4.4vw,3.5rem);text-wrap:balance}
.cta p{margin-top:16px;max-width:520px}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-actions .btn{width:100%}
.cta .btn-line{border-color:var(--ink)}

/* En-tête de page intérieure */
.phead{background:var(--beton);padding:72px 0 64px;border-bottom:1px solid var(--line)}
.crumb{font-family:var(--mono);font-size:.76rem;letter-spacing:.04em;color:var(--muted)}
.crumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.crumb li+li::before{content:"/";margin-right:8px;color:var(--line)}
.crumb a{color:var(--gold-deep)}
.phead h1{font-size:clamp(2.5rem,6vw,5rem);margin:22px 0 20px;max-width:980px}
.phead p{color:var(--muted);font-size:1.14rem;max-width:640px}

/* Métiers */
.subnav{position:sticky;top:var(--head);z-index:20;background:var(--paper);border-bottom:1px solid var(--line)}
.subnav .wrap{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none}
.subnav .wrap::-webkit-scrollbar{display:none}
.subnav a{flex:none;display:flex;align-items:center;gap:10px;min-height:56px;padding:0 16px;font-weight:600;font-size:.95rem;border-bottom:2px solid transparent;transition:border-color .2s ease,color .2s ease}
.subnav a small{font-family:var(--mono);font-size:.7rem;color:var(--gold-deep)}
.subnav a.on{border-bottom-color:var(--gold)}
.pole-sec{padding:96px 0;border-bottom:1px solid var(--line)}
.pole-sec:nth-of-type(even){background:var(--paper)}
.pole-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:64px;align-items:start}
.pole-side{position:sticky;top:calc(var(--head) + 88px)}
.pole-side .art{background:var(--ink);aspect-ratio:4/3;margin-bottom:26px}
.pole-side .art svg{width:100%;height:100%}
.pole-side h2{font-size:clamp(1.9rem,3.4vw,2.7rem);margin:14px 0 14px}
.pole-side p{color:var(--muted)}
.presta{list-style:none;border-top:2px solid var(--ink);display:grid;grid-template-columns:1fr 1fr;column-gap:32px}
.presta li{display:grid;grid-template-columns:44px 1fr;gap:4px 12px;padding:22px 4px;border-bottom:1px solid var(--line)}
.presta span{font-family:var(--mono);font-size:.76rem;color:var(--gold-deep);padding-top:5px}
.presta h3{font-family:var(--display);font-stretch:108%;font-weight:700;font-size:1.16rem;line-height:1.22}
.presta p{grid-column:2;color:var(--muted);font-size:.95rem}

/* Entreprise */
.about{display:grid;grid-template-columns:1.1fr .9fr;gap:72px;align-items:start}
.about h2{font-size:clamp(1.9rem,4vw,3.1rem);margin:16px 0 22px;text-wrap:balance}
.about p{color:var(--muted);max-width:600px}
.about p+p{margin-top:16px}
.idcard{background:var(--ink);color:var(--cream);padding:34px 32px}
.idcard h2{font-family:var(--display);font-stretch:108%;font-weight:800;font-size:1.3rem;display:flex;align-items:center;gap:12px;margin:0}
.idcard h2 svg{width:42px;height:34px}
.idcard dl{margin-top:18px}
.idcard dl div{display:grid;grid-template-columns:118px 1fr;gap:12px;padding:13px 0;border-top:1px solid var(--line-d);font-size:.95rem}
.idcard dt{font-family:var(--mono);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--gold);padding-top:4px}
.values{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.value{padding-top:18px;border-top:2px solid var(--ink)}
.value h3{font-family:var(--display);font-weight:700;font-size:1.15rem;margin-bottom:6px}
.value p{font-size:.96rem;color:var(--muted)}
.photo-wide{position:relative;padding:0 26px 26px 0}
.photo-wide::before{content:"";position:absolute;right:0;bottom:0;width:58%;height:58%;background:var(--gold)}
.photo-wide img{position:relative;width:100%;height:auto;aspect-ratio:1/1;object-fit:cover}

/* Contact */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:64px;align-items:start}
.clist{display:flex;flex-direction:column}
.citem{display:flex;align-items:flex-start;gap:16px;padding:18px 0;border-top:1px solid var(--line-d);min-height:64px;transition:color .2s ease}
.citem:last-child{border-bottom:1px solid var(--line-d)}
.citem svg{width:22px;height:22px;stroke:var(--gold);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:none;margin-top:5px}
.citem small{display:block;font-family:var(--mono);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted-d)}
.citem b{font-weight:600;font-size:1.03rem;line-height:1.45;display:block}
@media (hover:hover) and (pointer:fine){a.citem:hover{color:var(--gold)}}
.map{margin-top:28px;border:1px solid var(--line-d);background:var(--ink-2);aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;text-align:center;padding:24px;position:relative;overflow:hidden}
.map p{color:var(--muted-d);font-size:.9rem;max-width:340px;margin:0 auto 16px}
.map iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
form.quote{background:var(--paper);color:var(--ink);padding:36px}
form.quote h2{font-family:var(--display);font-stretch:108%;font-weight:800;font-size:1.5rem;margin-bottom:22px}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field.full{grid-column:1/-1}
.field label,.field legend{font-size:.86rem;font-weight:600}
.field .opt{font-weight:400;color:var(--muted)}
.field input,.field select,.field textarea{width:100%;min-height:50px;padding:12px 14px;font-size:16px;background:#fff;border:1px solid #8B867C;border-radius:3px;transition:border-color .2s ease,box-shadow .2s ease}
.field textarea{min-height:124px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--ink);box-shadow:0 0 0 3px rgba(227,167,47,.5)}
.field.err input,.field.err textarea{border-color:#B3261E}
.field .msg{display:none;font-size:.82rem;font-weight:600;color:#B3261E}
.field.err .msg{display:block}
fieldset{border:0;min-width:0}
.types{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.types label{position:relative;cursor:pointer}
.types input{position:absolute;opacity:0;inset:0;width:100%;height:100%;min-height:0;cursor:pointer;margin:0}
.types span{display:flex;align-items:center;min-height:44px;padding:0 16px;border:1px solid #8B867C;border-radius:999px;font-size:.9rem;font-weight:600;background:#fff;transition:background-color .16s ease,color .16s ease,border-color .16s ease}
.types input:checked+span{background:var(--ink);border-color:var(--ink);color:var(--gold)}
.types input:focus-visible+span{outline:2px solid var(--gold-deep);outline-offset:2px}
.consent{display:flex;gap:12px;align-items:flex-start;margin-top:20px;font-size:.88rem;color:var(--muted)}
.consent input{width:22px;height:22px;margin-top:1px;flex:none;accent-color:var(--ink)}
.consent a{color:var(--gold-deep);text-decoration:underline;text-underline-offset:2px}
.consent.err{color:#B3261E}
form.quote .btn{width:100%;margin-top:22px}
.form-note{margin-top:12px;font-size:.84rem;color:var(--muted);text-align:center}
.sent{display:none;text-align:center;padding:40px 10px}
.sent svg{width:56px;height:56px;margin:0 auto 18px;stroke:var(--gold-deep);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.sent h2{margin-bottom:10px}
.sent p{color:var(--muted);margin-bottom:22px}
form.quote.done .form-body{display:none}
form.quote.done .sent{display:block;animation:rise .4s var(--out)}

/* Pages légales */
.legal{max-width:800px}
.legal h2{font-family:var(--display);font-stretch:108%;font-weight:800;font-size:1.45rem;margin:44px 0 12px}
.legal h2:first-child{margin-top:0}
.legal p,.legal li{color:var(--muted)}
.legal p+p{margin-top:10px}
.legal ul{margin:10px 0 0 20px}
.legal li+li{margin-top:6px}
.legal a{color:var(--gold-deep);text-decoration:underline;text-underline-offset:2px}
.legal dl div{display:grid;grid-template-columns:200px 1fr;gap:12px;padding:12px 0;border-top:1px solid var(--line)}
.legal dt{font-weight:600}
.legal dd{color:var(--muted)}
.updated{font-family:var(--mono);font-size:.76rem;color:var(--muted);margin-top:48px}

/* Fiche ouvrage */
dialog{border:0;padding:0;background:var(--paper);color:var(--ink);width:min(760px,calc(100vw - 28px));max-height:calc(100dvh - 28px);margin:auto;overflow:auto}
dialog::backdrop{background:rgba(10,10,12,.74)}
dialog[open]{animation:pop .3s var(--out)}
@keyframes pop{from{opacity:0;transform:translateY(14px) scale(.97)}}
.dlg-art{aspect-ratio:16/8;background:var(--ink)}
.dlg-art svg{width:100%;height:100%}
.dlg-body{padding:28px 30px 32px}
.dlg-body h2{font-family:var(--display);font-stretch:108%;font-weight:800;font-size:1.7rem;line-height:1.1;margin:12px 0 12px}
.dlg-body p{color:var(--muted)}
.dlg-body ul{list-style:none;margin:22px 0 26px;border-top:1px solid var(--line)}
.dlg-body li{padding:12px 0 12px 26px;border-bottom:1px solid var(--line);position:relative;font-weight:500}
.dlg-body li::before{content:"";position:absolute;left:2px;top:20px;width:9px;height:9px;background:var(--gold);transform:rotate(45deg)}
.dlg-close{position:sticky;top:10px;float:right;margin:10px 10px -58px 0;width:48px;height:48px;border-radius:50%;background:var(--paper);display:flex;align-items:center;justify-content:center;z-index:2;box-shadow:0 4px 14px rgba(0,0,0,.25);transition:transform .16s var(--out)}
.dlg-close:active{transform:scale(.95)}
.dlg-close svg{width:20px;height:20px}
.dlg-body .btn{width:100%;white-space:normal;text-align:center;padding:12px 22px}
.draw-on path{stroke-dasharray:1;stroke-dashoffset:1;animation:draw 1.4s var(--inout) .15s forwards}
@keyframes draw{to{stroke-dashoffset:0}}

/* 404 */
.nf{min-height:calc(100svh - var(--head));display:flex;align-items:center;padding:80px 0}
.nf h1{font-size:clamp(3rem,10vw,8rem);margin:16px 0 18px}
.nf p{color:var(--muted);max-width:520px;margin-bottom:28px}

/* Pied de page */
footer{background:var(--ink);color:var(--muted-d);padding:80px 0 28px;border-top:1px solid var(--line-d);font-size:.94rem}
.foot-top{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:28px;padding-bottom:56px;border-bottom:1px solid var(--line-d);margin-bottom:48px}
.foot-top p.display{font-size:clamp(1.8rem,4vw,3rem);color:var(--cream);max-width:640px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px}
.foot-grid h2{font-family:var(--mono);font-size:.72rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--gold);margin-bottom:14px}
.foot-grid ul{list-style:none}
.foot-grid li a{display:inline-flex;align-items:center;min-height:36px;transition:color .2s ease}
.foot-brand .brand{color:var(--cream)}
.foot-brand p{margin-top:14px;max-width:300px}
.foot-bottom{margin-top:48px;padding-top:22px;border-top:1px solid var(--line-d);display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;font-size:.84rem}
.foot-bottom nav{display:flex;flex-wrap:wrap;gap:4px 20px}
@media (hover:hover) and (pointer:fine){.foot-grid li a:hover,.foot-bottom a:hover{color:var(--gold)}}

/* Barre d'action mobile */
.mbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:40;background:var(--ink);border-top:1px solid var(--line-d);padding:10px 14px calc(10px + env(safe-area-inset-bottom));gap:10px}
.mbar .btn{flex:1;min-height:48px;padding:0 10px}

/* Réactif */
@media (max-width:1024px){
  .menu{position:absolute;top:100%;left:0;right:0;height:calc(100vh - var(--head));height:calc(100dvh - var(--head));background:var(--beton);flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0;padding:12px var(--gutter) 40px;font-family:var(--display);font-stretch:108%;font-weight:700;font-size:1.6rem;transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity .2s ease,transform .3s var(--out),visibility 0s .3s;overflow:auto}
  .menu-open .menu{opacity:1;transform:none;visibility:visible;transition-delay:0s}
  .menu a:not(.btn){padding:18px 0;border-bottom:1px solid var(--line)}
  .menu a:not(.btn)::after{display:none}
  .menu a[aria-current="page"]{color:var(--gold-deep)}
  .menu .btn{margin-top:28px;min-height:56px;font-family:var(--body);font-size:1.05rem}
  .burger{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .sign{max-width:540px}
  .poles{grid-template-columns:1fr 1fr}
  .ouv-grid{grid-template-columns:repeat(2,1fr)}
  .about,.contact-grid,.pole-grid{grid-template-columns:1fr;gap:44px}
  .pole-side{position:static}
  .presta{grid-template-columns:1fr}
  .steps,.values{grid-template-columns:repeat(2,1fr);gap:44px 28px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cta .wrap{grid-template-columns:1fr}
}
@media (max-width:640px){
  :root{--gutter:18px;--head:68px}
  body{font-size:16px}
  footer{padding-bottom:104px}
  section,.pole-sec{padding:76px 0}
  .hero{padding-top:36px}
  .hero-cta .btn{flex:1 1 100%}
  .poles,.ouv-grid,.trio,.steps,.values,.fgrid,.foot-grid{grid-template-columns:1fr}
  .head{margin-bottom:38px}
  .chips{flex-wrap:nowrap;overflow-x:auto;margin:0 calc(-1 * var(--gutter));padding:0 var(--gutter) 6px;scrollbar-width:none}
  .chips::-webkit-scrollbar{display:none}
  .chip{flex:none}
  .phead{padding:48px 0 44px}
  .cta{padding:64px 0}
  form.quote{padding:26px 20px}
  .idcard{padding:26px 22px}
  .idcard dl div,.legal dl div{grid-template-columns:1fr;gap:2px}
  .dlg-body{padding:22px 20px 26px}
  .mbar{display:flex}
  .coords{flex-direction:column;gap:2px}
  .trio{margin-top:52px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-delay:0s!important;transition-duration:.01ms!important}
  .statement .w{color:var(--cream)}
  .statement .w.g{color:var(--gold)}
}